Connecting device



Oct. 22,1935. D. c. ABDELNUR CONNEGTING DEVICE Filed Nov.' A24., 1954 L Patented Oct. 22, 1935 PATENT, OFFICE 2,618,338 E comme. DEVICE Dmitri C. Abdelnonr, Port Chester, N. Y., assigner to AD. A. & H. Corporation, New York, N. Y., a corporation of New York AppuumNmmm-r 24, 1934, serai Nu. 754,610

3 Claims. This invention 'relates to a connecting'device adapted for quick and easy connection and removal. More particularly this invention relates to -such a device adapted for connecting blades t0 the swinging arms of windshield wipers and similar apparatus. f

Prior to my present invention a number of devices havebeen suggested for eiiecting the conynection between the swinging arms and the blades of windshield wipers. Of these, three types have come to be accepted as the standard and are `used on nearly all Wipers which are'now sold. The iirstof these 'is the simple bolted connection in which wings are provided on the ends of the swinging arm to fit over the opposite side oi the l5 blade and abolt is inserted through the wings and the back of the blade to hold them in operativerelationship. In the second type the end of 'the swinging arm is formed with a hook, and a saddle membei; is provided on the back of the blade into which thehooked end of the arm is engaged. 'I'he third type consists ,of a flat hooked iin on the back of the blade and an end member on the swinging-arm having a slotted back for reception of the fin and depending ears or wings to engage the sides oi the blade. In the past, each of these threetypes of connections has required a specially madeblade, and it has been necessary therefore to stock three types of replacement blades.

It is an object of the present invention to provide an attaching clip adapted for connection with anyof the three types of standard wiperl arm connections. Another object oi the invention is to provide an attaching clip which will be simple and inexpensive and yet entirelyetllcient and satisfactory in operation. "I

In the accompanying drawingI have shown a preferred embodiment of my invention adapted to attain these lobjectives and certain" modificaf tions thereof, In these drawings I have shown in:

Figure 1, a side yiew of a blade having an at` taching clip according to my invention, a portion of a swingingrm oia windshield wiper partially in longitudinal section. f

Figure 2 is a back view of the same combination as shown in Figure 1.

Figure 3 is a cross-'section taken on line 3 3 Iof Figure 1. A

Figure 4 is aview similar to Figure 2 but'with a bolted wing type of connection instead oi' thev slot and earconnection. 1

Figure`.5 is a cross section taken on line 5-5 `oiFigure4. Fiure 6 is aside viewsimilar to Figure 1 butr (ci. -25a) y vshowing the hooked end type of connection instead of the slot and ear type shown in Figure 1.

Figure '7 is a fragmentary perspective View of the attaching clip and the adjacent Aportieri of the blade without the Wiper arm.

Figure 8 is a side view 'of a modied form oi attaching clip also embodying my invention.

Figure 9 isa fragmentary view partially in longitudinal section of another modified form embodying my invention, shown operatively con- 10 nected with a hooked end type wiper arm.

Figure 10 is a cross-section taken on line Ill-I0 of Figure 9; and

Figure l1 is a side view of an attaching clip similar to that'illustrated in Figure 9 but conll nected to a s lot and ear type wiper arm.

Referring to the drawing in Figures 1 to 3 inclusive and Figures 6, 'Z and 8, I have shown the blade as a sleet wiper within the\scope of my Patent No. 2,009,377; and in Figures 4, 5, 9 and 11 20 I have shown the blade as-a conventional squeegee type rain wiper. In the case of the sleet wiper blade 20, it is desirable to maintain the blade substantially parallel to the surface of the windshield, and it is preferable therefore, that the attaching clip 2l should be Wide enough in oute 'side dimensions to t closely within nthe bolted wing, and the slot and ear type of wiper arm so as substantially to eliminate the tendency towards rocking of the blade within its connection. For the same reason it is desirable that the inside dimension should iit closely to they hooked-end of the third type of wiper-arm. In the case of the squeege blade arocking or opping action is desirable, and in that case, therefore, the dimensions oi' the attaching clip are preferably such as to permit substantial play between theattaching clip and the connecting end of the wiper arm. This. however, is not essential and is no part of the present inventionrbut 40 is merely accepted practice of long standing.v -As shown in Figures l and 2, thgattached clip 2| comprises a single piece of sheet metal, the

upper end of which is looped over to form the central connecting portion 22 and the lower part 45.

of which is bent to form`a central iin or' hook 23. The end s of both portions in this form are bent outwardly to form feet 24 and 25 which in this case are-'spot welded to the backoi the blade v28Vl As clearly illustrated in Figures 1, 6 and 7, the 150 portion 22 is drilled as indicated at 2T and slotted as indicated at'26 for reception of' the bolt or the hooked end ofthe wiperrespectively. The

. center iin portion 2,3 as illustrated in these figures is formed with an overhanging hook 2av adapted,"

to engage the end 29 of the wiper arm 20 beyond the slot as clearly shown in Figures 1 and 2.

In Figures v4 and 5 I have shown the attaching clip embodying my invention combined with a bolt and wing type wiper arm. In this case the wing 2| on the end of the'wiper arm embraces the portion 22 of the attaching 'clip and the bolt als inserted through the hole 21 in the attaching clip 2| and is screwed into the wing 2| 'oi the wiper arm, e: g., as shown in Figure 5. .In Figure 6 I have own the clip of my invention combined, with a\ hooked end typewiper arm. In this case the ila portion 22 of the bottom of the hook bears gainst'the back oi' the blade 22 and the end o the hook 24 is inserted through the hole 22 in the i'old of the loop 22.

InFigures 1 to 3 and 8 to 8 I have shown the attaching clip of my invention on ablade intended for wiping sleet from a lwindshield. This blade consists essentially of a back 22, the edges oi which are rolled over as shown at 2Gb to engage-and secin'e the edges of a'fabric facing 22. A bar of salt or other water soluble material 21' is held within the fabric 22 .and in use is pressed) against the windshield by the rigid l back2 In Figures 4 and 5 I have shown the attaching clip combined with a conventional type of squeegee blade 20a in which the rubber squeegee strip is clamped in a metal -backing 22a. V'i'his backing being substantially narrower than the' back 22, the ends of the clip 2l-in this case are bent over the sides ofthe back 28a "as shown at 22a and ymay be spot welded or otherwise secured thereon. These two types. ofl blades are given only as examples of the numerous types to lwhich my invention may be applied and it is to be understoodthat the invention is not essentially tied up to either oi' these particular types'of blades,

be,ntted. The end 24 ot -the hook would then` be positioned close to.' the lfold of the loop 22 so that the hook cannot be lifted out o'f the depression 22 except by swinging the blade over the emhoi' the^arm substantially the same'as in the caseoi the constructionv shown in Figure 6. This will be moregfully understood with reference to iugm-e 9 described below.,

When the slot andv ear type wiperlvarm is used with this attaching clip, as shown in Figure 8,- the end 32 of the wiper arm 22 beyond. the slot is engaged under the .projection 'lil on the portion 22 of the attached clip, thus assuring that the nn 22a can be removed from the slot on the wiper arm o y by swinging the blade over the end of the a Just describedl in connection with the hooked end type oi' arm.

...y In -Figures 9 and 10 a still. simpler construction is illustrated. l In this case the projection 4Il is omittedand instead of the depression 22 formed .in the back of 'the wiper .blade a similar eil'ect lis obtained by crimping the corners-of .the portion 22 Just above the back of the blade as shown at 4i and 42. These crimps serve' to hold the portion 22 on the end oi the wiper 'arm against longitudinal movement within the portion`22'oi the in substantially the same way as clip. In this, as in the case illustrated in Figure 8, the end 22 of the hooked wiper arm is positioned close beneath the fold of the loop 22 so as to prevent the bottom of the hook 22 being lifted above the crimped portions 4I and 42. The action oi this clipis. substantially identical'when combined with the hooked end arm with that of the clip shown in Figure 8. With the slot and ear type oi' arm, however, the iin 22a engages in the slot on the ends of the arm 2li without any interlocking or hooking action, and consequently the engagement depends upon the resilient pressure of the wiper arm against the blade. This combination is illustrated in Figurefll.

Although I have illustrated in the accompanying drawings and described above a preferred embodiment of my invention and'several modifications thereof, it should be understood that these are given only by way oi' illustration and in order to enable those skilled in the art to use and ing conditions encountered in actual practice. It should be understood likewise that all such adaptations arefwithin the scope oi' this appliapply my invention andto'adapt it to the 'varythen outwardly from the line. of said bight. pore tion for engagement in the slot oi a slotted wiper arm. v 2. A clip as denned in claim 1 in which .the channel is wide enough to permit opping of a `hooked arm withinit and narrow enough izo-per.

o mit its ilopping on a bolted or slotted arm.

3. In combination with a wiper blade.,a connection adapted for engagement with a wiper arm having abearing portion to press against the blade and 'a hooked end portion bent out wardly therefrom away from the blade, which' comprises bearing means onthe blade adapted to .receive pressure from the bearingmortii'm4 oi' the wiper arm', a channel member secured to the blade and extended over the bearing means.

beyond and before the parto! lthe channel which engages the end of the hook onthe *wiper arm and the .said Ameans which is before, the end oi' j the hook being f positioned' beyond the path oi'- insertion and withdrawal oi' the hook when the blade is swung awa common plane, butsblocking the path of removal en the blade is .in operative position on the per arm. h v Dm C. ABDELNOUR.

from the wiperarmin their 

